The following six particles, with rest energy E0 and Kinetic…

The following six particles, with rest energy E0 and Kinetic energy K as indicated, are collided with their antimatter particles, traveling in the opposite direction with the same kinetic energy. The resulting matter-antimatter annihilation produces a pair of photons traveling in opposite directions.            A                      B                            C                      D                       E                            F       E0=800 MeV      E0=200 MeV       E0=100 MeV        E0=200 MeV      E0=400 MeV       E0=100 MeV   K=100 MeV        K=400 MeV         K=200 MeV.         K=100 MeV       K=200 MeV        K=400 MeV a.(8 points) Rank these particles from largest to smallest, on the basis of the energy of the photons they create (if two are equal, write an equal sign between them). b. (4 points) Rank them on the basis of the speed of the photons they create (if you cannot determine the correct ranking, please say so).